Snap-on shell for portable electronic devices



FIG. 1 is an oblique view;

FIG. 2 is a top-down view with the cover closed;

FIG. 3 is a top-down view with the cover open;

FIG. 4 is a back view;

FIG. 5 is a bottom view with the cover open; and,

FIG. 6 is side view with the cover open. 

CLAIM The ornamental design for a snap-on shell for portable electronic devices, as shown and described. 